# \
str1 = 'hello\word'
print(str1)


# \'
str2 = 'I\'m teacher'
print(str2)


# \n
str3 = '123\n456'
print(str3)


# \t
str4 = '123\t456'
print(str4)


# \r
str5 = '123\r456'
print(str5)     # 显示456


